HARMONI: the first light integral field spectrograph for the E-ELT
HARMONI: the first light integral field spectrograph for the E-ELT
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HARMONI：第一台用于 E-ELT 的光积分场光谱仪
DOI：
10.1117/12.2055436
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
B. Neichel
中科院分区：
文献类型：
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作者：
N. Thatte;F. Clarke;I. Bryson;H. Schnetler;M. Tecza;R. Bacon;A. Remillieux;E. Mediavilla;José Miguel Herreros Linares;S. Arribas;C. Evans;D. Lunney;T. Fusco;K. O’Brien;I. Tosh;D. Ives;G. Finger;R. Houghton;R. Davies;J. Lynn;Jamie R. Allen;S. Zieleniewski;S. Kendrew;Vanessa Ferraro;A. Pécontal;J. Kosmalski;J. Richard;A. Jarno;A. Gallie;D. Montgomery;D. Henry;G. Zins;D. Freeman;B. García;L. Rodríguez;J. Revuelta;E. Hernández Suárez;Alberto Bueno;José Vincente Gigante;Adolfo A. Garcia;K. Dohlen;B. Neichel
HARMONI 是一款可见光和近红外（0.47 至 2.45 μm）积分场光谱仪，提供 E-ELT 的核心光谱能力，分辨率范围从 R (≡λ/Δλ)~500 到 R~20000。该仪器可同时提供约 32000 个可见光和近红外波长的空间像素的光谱，排列在 √2:1 纵横比的连续场中。 HARMONI 被认为是一种主力仪器，可解决 E-ELT 的许多关键科学案例，并将在其早期阶段挖掘 E-ELT 的科学潜力，从最初的曙光开始。 HARMONI 提供一系列空间像素（spaxel）尺度和光谱分辨率，允许用户针对各种科学项目优化配置仪器；从超灵敏到衍射限制、空间分辨、物理（通过形态）、化学（通过丰度和线比）和运动学（通过视线速度）天体物理源研究。最近，由于与望远镜的接口和 E-ELT Nasmyth 平台的架构进行了重大修改，HARMONI 的设计发生了重大变化。我们从功能和性能的角度概述了 HARMONI 的功能及其设计。
HARMONI is a visible and near-infrared (0.47 to 2.45 μm) integral field spectrometer, providing the E-ELT's core spectroscopic capability, over a range of resolving powers from R (≡λ/Δλ)~500 to R~20000. The instrument provides simultaneous spectra of ~32000 spaxels at visible and near-IR wavelengths, arranged in a √2:1 aspect ratio contiguous field. HARMONI is conceived as a workhorse instrument, addressing many of the E-ELT’s key science cases, and will exploit the E-ELT's scientific potential in its early years, starting at first light. HARMONI provides a range of spatial pixel (spaxel) scales and spectral resolving powers, which permit the user to optimally configure the instrument for a wide range of science programs; from ultra-sensitive to diffraction limited, spatially resolved, physical (via morphology), chemical (via abundances and line ratios) and kinematic (via line-of-sight velocities) studies of astrophysical sources. Recently, the HARMONI design has undergone substantial changes due to significant modifications to the interface with the telescope and the architecture of the E-ELT Nasmyth platform. We present an overview of the capabilities of HARMONI, and of its design from a functional and performance viewpoint.